<?php

function cut_str($string, $sublen, $start = 0, $code = 'UTF-8')
{
	if($code == 'UTF-8')
	{
		$pa = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/";
		preg_match_all($pa, $string, $t_string);

		if(count($t_string[0]) - $start > $sublen) 
			return join('', array_slice($t_string[0], $start, $sublen))."..";
		return join('', array_slice($t_string[0], $start, $sublen));
	}
	else
	{
		$start = $start*2;
		$sublen = $sublen*2;
		$strlen = strlen($string);
		$tmpstr = '';
		for($i=0; $i<$strlen; $i++){
			if($i>=$start && $i<($start+$sublen))
			{
				if(ord(substr($string, $i, 1))>129) 
					$tmpstr.= substr($string, $i, 2);
				else 
					$tmpstr.= substr($string, $i, 1);
			}
			if(ord(substr($string, $i, 1))>129) 
				$i++;
		}
		if(strlen($tmpstr)<$strlen ) 
			$tmpstr.= "..";
		return $tmpstr;
	}
}


?>